Extend

Extends a line endpoint to the nearest intersection with another entity.

How to use

1. Activate by typing extend in the terminal.
2. Hover near one end of a line — a preview shows how the line will be extended to the closest boundary.
3. Click to apply the extension.

The command stays active so you can extend multiple lines in sequence. Press Escape to exit.

Notes

• Only Line entities can be extended (not arcs, circles, polylines, or text).
• The end being extended is determined by which endpoint the cursor is closer to.
• The extension target is the closest intersection along the ray cast from the chosen endpoint.
• Text, Mtext, Multileader, and Spline entities are ignored as boundaries.
• If no boundary intersection is found along the ray, no preview is shown and clicking does nothing.

Keyboard shortcuts

Key	Action
Escape	Exit extend mode